Meanwhile, outside the Valley, across the ocean, five years ago, some regular taxi companies where I lived launched hailing apps, all on their own. No startups required. Maybe the competition was stronger?

But those innovative taxi companies still charged a 10% surcharge for using your credit card. Which mysteriously dropped to 5% when Uber appeared on the scene.

Where is that? Would be interesting to know how Uber is doing in that market.

Stockholm, Uber just entered it, so that's going to be interesting to follow.

To be fair though, Uber's app is (now) better than the existing taxi company apps, with its integrated payments and map where you can see how far away your car is, so there's some value there.

The only industries that won't be demolished and rebuilt, are those in which it's nearly impossible to compete by design / by law, or for which there isn't a great business opportunity.

Nobody will be disrupting JP Morgan this century. That's by dictate of the US Government that will never let go of its direct control over the financial industry. Try and you won't be tangling with some annoying city board.

Airlines won't get disrupted until new technology comes on line to make it drastically less expensive, or something like Hyperloop is built. The problem there is not lack of competition. Not to mention, software is already sucking the best profits out of that industry: Priceline & Co. The airlines are the commodity box makers to Priceline's Windows.